B43K 7/035
The gas acting on a piston
Official title: the gas acting on a piston
B43K7/035 (The gas acting on a piston) appears on 5 US grants and 2 published applications in this corpus.
Search patents in B43K- Granted patents
- 5
- Published applications
- 2
- Assignees
- 5
- Inventors
- 9
- Latest grant
- 20 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pressurized-type writing implement20 Sep 2022US 11,446,953 B2Kabushiki Kaisha Pilot Corporation
- Writing utensil with pressurizing mechanism29 Sep 2020US 10,787,022 B2Zebra Co., Ltd.
- Device for applying a liquid or semi-paste substance on a surface26 Feb 1991US 4,995,751 A
- Pressurized cartridge for a writing instrument12 Feb 1985US 4,498,797 AThe Gillette Company
- Ballpoint pen cartridge14 Dec 1976US 3,997,273 AAnanda Anlageanstalt
Most cited
By later US patents
- Ballpoint pen cartridge6US 3,997,273 AAnanda Anlageanstalt · 1976
- Pressurized cartridge for a writing instrument3US 4,498,797 AThe Gillette Company · 1985
- Device for applying a liquid or semi-paste substance on a surface3US 4,995,751 A1991
- Writing utensil with pressurizing mechanism2US 10,787,022 B2Zebra Co., Ltd. · 2020